[pymvpa] get_haxby2001_data() missing mask_vt.nii.gz

[Yaroslav Halchenko]

On Sun, 22 Dec 2013, Jason Ozubko wrote:
>    Thanks for the reply Yaroslav. I am trying to setup py-mvpa on a Windows 7
>    machine. I downloaded and installed pymvpa2-2.2.0.win32-py2.7.exe, from
>    the Unofficial Windows binaries collection of Christoph Gohlke. I'm trying

FWIW -- kudos to Christoph for all his work to empower Windows users with
rich collection of Python modules, despite me considering it being
somewhat of a Don Quixote quest in chasing the windmills.

>    to follow the getting started tutorial (Part 1: Gentle Start).  Here's
>    what I get on my Windows 7 machine:

have you downloaded the tutorial dataset as described in
http://www.pymvpa.org/tutorial.html
from
http://data.pymvpa.org/datasets/tutorial_data/
?

make sure it was extracted and available in the path from your current
directory (below it seeks it under data/ right?):

>      File "c:\Python27\lib\gzip.py", line 94, in __init__
>        fileobj = self.myfileobj = __builtin__.open(filename, mode or 'rb')
>    IOError: [Errno 2] No such file or directory: '.\\data\\mask_vt.nii.gz'

>    I am pretty certain the gcc step means I missed a step in installing a
>    component, but the get_haxby command is failing from missing files (I am
>    unable to find a mask_vt.nii.gz file anywhere, I suppose maybe they
>    weren't packaged in the unofficial binaries properly?).  

well -- tutorial data is not packaged within pymvpa, and should be
shipped separately.  In NeuroDebian we have a dedicated package for it:
python-mvpa2-tutorialdata

>    Given these troubles getting things working in Windows 7, I've tried out
>    the NeuroDebian virtual machine (which is actually a terrific concept) and
>    I think I have it working.

Great -- that is the way we teach courses on PyMVPA and advise our users
to proceed with empowering their scientific environments (for PyMVPA or
not)

>    The next step (get_haxby2001_data()) seems to work just fine though. 
>    (Note I
>    downloaded [1]http://neuro.debian.net/debian/vm/NeuroDebian_7.2.0_i386.ova,
>    and I let it install all the updates after I got the machine booted up)

so you should be all set I guess, right?

-- 
Yaroslav O. Halchenko, Ph.D.
http://neuro.debian.net http://www.pymvpa.org http://www.fail2ban.org
Senior Research Associate,     Psychological and Brain Sciences Dept.
Dartmouth College, 419 Moore Hall, Hinman Box 6207, Hanover, NH 03755
Phone: +1 (603) 646-9834                       Fax: +1 (603) 646-1419
WWW:   http://www.linkedin.com/in/yarik